I currently have tasks qued/being worked on, from World Community Grid, yoyo@home, and Rosetta@home.

I just started running tasks for yoyo[@home, and by golly. These tasks are freaking HUGE! The shortest task estimate is 2 days, and 18 hours.

Rosetta@home offered up tasks that took me more than a day for most, to be completed.

World Community Grid has been the best in completing tasks and not taking more than a day to finish. The longest estimated time to completion has been under 9 hours.